Java Quiz 1

What is the output of the following code snippet?

public class MyClass {

public static void main(String[] args) {

int x = 5;

System.out.println(x++ + ++x);

}

}

• 10

• 11

• 12

• 13

Which of the following statements is true about the "finally" block in Java?

• It must be used with every try block.

• It is executed only if an exception occurs.

• It is executed regardless of whether an exception occurs or not.

• It can be used to handle exceptions.

Which of the following is NOT a primitive data type in Java?

• int

• float

• String

• boolean

What will be the output of the following code snippet?

String str1 = "Hello";

String str2 = "Hello";

System.out.println(str1 == str2);

• true

• false

• Compilation error

• Runtime error

Which keyword is used to prevent a method from being overridden in Java?

• final

• static

• abstract

• private

6. What is the output of the following code snippet?

7. public class Test {

   public static void main(String[] args) {

   int x = 5;

   System.out.println(x > 2 ? x < 4 ? 10 : 8 : 7);

   }

   }

• 7

• 8

• 10

• Compilation error

What is the supermost class of all exception classes in Java?

• Throwable

• Exception

• Error

• RuntimeException

Which of the following is true about the "this" keyword in Java?

• It refers to the superclass of a class.

• It refers to the current instance of a class.

• It refers to the subclass of a class.

• It refers to a static member of a class.

What is the purpose of the "super" keyword in Java?

• It is used to access superclass members.

• It is used to create an object of a class.

• It is used to define an interface.

• It is used to access static methods.

Which of the following statements about interfaces in Java is true?

• An interface can extend multiple interfaces using the "extends" keyword.

• An interface can have constructors.

• An interface can have method implementations.

• An interface can contain instance variables.